HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 350

• Manufacturer Part Number: HD6413007F20
• Description: IC H8 MCU ROMLESS 5V 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413007F20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

9. 16-Bit Timer
• 16TCNT count timing
Rev.5.00 Sep. 12, 2007 Page 320 of 764
REJ09B0396-0500
16TCNT input
clock
φ
Internal
clock
16TCNT
⎯ Internal clock source
⎯ External clock source
GR
H'0000
STR bit
IMF
Bits TPSC2 to TPSC0 in 16TCR select the system clock (φ) or one of three internal clock
sources obtained by prescaling the system clock (φ/2, φ/4, φ/8).
Figure 9.15 shows the timing.
Bits TPSC2 to TPSC0 in 16TCR select an external clock input pin (TCLKA to TCLKD),
and its valid edge or edges are selected by bits CKEG1 and CKEG0. The rising edge,
falling edge, or both edges can be selected.
The pulse width of the external clock signal must be at least 1.5 system clocks when a
single edge is selected, and at least 2.5 system clocks when both edges are selected. Shorter
pulses will not be counted correctly.
16TCNT value
N − 1
Figure 9.15 Count Timing for Internal Clock Sources
Figure 9.14 Periodic Counter Operation
N
Counter cleared by general
register compare match
N + 1
Time